Gin is a liquor originally derived from juniper berries, although nowadays it can be made with many other bases as long as the predominant flavor is still that of the juniper berry. There are many styles of gin on the market, but the two major types are compound gins and distilled gins. A compound gin is usually flavored, and it is distilled only once. Distilled gins, which are more popular, are made using traditional methods of juniper berries and other essences. London Dry Gin, for example, is flavored with a hint of citrus, and sometimes spices like saffron, frankincense, and coriander.
Gin is essential to any well-stocked bar, as it can be used to make cocktails as simple as a gin and tonic, or as intricate as a martini.